After adding up design conduction and infiltration losses, you find that a house in New York has ...
In this problem you will estimate the heat lost by a typical house, assuming that the temperature inside is T(in) = 20 degrees celcius and the temperature outside is T(out) = 0 degrees celcius. The walls have fiberglass insulation, which dominates the heat conduction properties of the wall So we can consider the wall to have a thermal conductivity of k(wall) = 0.048 W/m/K . We will take the thickness of the walls and ceiling to be L(wall) = 12...
in New York, for one year Estimate the amount of natural gas used, in ft/day. To hea from the following data: Winter design heat loss = 120,000 Btu/hr • Design indoor temperature - 70PF • Design outdoor temperature - 10°F • Thermostat setting - 68°F Continuous internal gains of building = 15,000 Btu/hr Average furnace efficiency = 78% Heating value of natural gas = 1000 Btu/ft! Atmospheric Pressure @ Sea Level: 14.696 psi / 29.921 inches of Hg/34 feet of...
In this problem, you will estimate the heat lost by a typical house, assuming that the temperature inside is Tin=20∘C and the temperature outside is Tout=0∘C. The walls and uppermost ceiling of a typical house are supported by 2×6 inch wooden beams (kwood=0.12W/(mK)) with fiberglass insulation (kins=0.04W/(mK)) in between. The thickness of the wall is Lwall=18cm allowing for interior and exterior covering. Assume that the house is a cube of length L=9.0m on a side. Approximate that the roof has...
Estimate the infiltration for both summer and winter at design condition for a two story house in Birmingham Municipal airport. The house has effective leakage area of 100 in2 and volume of 14,000 ft', with no obstruction or local shielding. Then determine for both seasons the following Sensible heat Latent heat and total heat 2) a) b) (40) T-Mobile LTE 11:43 PM design conditions_chart.pdf design conditions-chart. pdf ▼ Meaning of acronyms DB: Dry bulb temperature, MCWB: Mean coincident wet bulb...